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| Content Provider | Springer Nature Link |
|---|---|
| Author | Ohba, Shin ya Miyasaka, Hitoshi Nakasuji, Fusao |
| Copyright Year | 2007 |
| Abstract | Predatory insects that depend upon particular prey animals are commonly regulated by the prey animal’s abundance. Nymphs of the giant water bug Kirkaldyia (=Lethocerus) deyrolli (Heteroptera: Belostomatidae) are predators regarded as specialists in feeding on tadpoles. We studied the ontogenetic diet shift of aquatic nymphs by quantifying instar abundance and by analyzing captured prey and prey relative abundance during the period of rice irrigation in three localities. We also evaluated the contribution of major prey items (tadpoles, frogs, and Odonata nymphs) on specific growth rates of each nymphal stage in a rearing experiment. First to third-instar nymphs of K. deyrolli fed mainly on tadpoles, regardless of differences in prey availability. Nymphs of subsequent fourth and fifth instar stages shifted from tadpoles to other prey animals within each rice field. A rearing experiment demonstrated that giant water bug nymphs provided with tadpoles had greater specific growth rates at all nymphal stages, except for the final stage, than nymphs fed other prey (frogs and Odonata nymphs). The emergence of young K. deyrolli nymphs seemed to coincide with the period during which tadpoles became abundant in the rice fields. Consumption of tadpoles seems important to allow the nymph to complete its larval development in an unstable temporary habitat. |
| Starting Page | 9 |
| Ending Page | 16 |
| Page Count | 8 |
| File Format | |
| ISSN | 14383896 |
| Journal | Population Ecology |
| Volume Number | 50 |
| Issue Number | 1 |
| e-ISSN | 1438390X |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2007-08-09 |
| Publisher Place | Tokyo |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Belostomatidae Kirkaldyia deyrolli Life history Temporary water Tadpole Frog Forestry Behavioural Sciences Evolutionary Biology Plant Sciences Zoology Ecology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ecology, Evolution, Behavior and Systematics |
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